An advanced model of computer immunology

An advanced model of computer immunology is brought forward based on the comparison between biology immune system and computer immune system. This model gives a mechanism and relevant arithmetic, which is called mature immune cell negative selection, to adapt to the computer system that change themselves frequently. At the same time, a memory cell dynamic demotion mechanism and relevant arithmetic are put forward to ensure the system to check multiform nonself. The network intrusion detection application, based on this model, shows that this model has high dynamic character and is more robust.